Shakers
create vibrations of various frequencies and intensities.
See Also: Vibration Test, Vibration Controllers
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Product
Slip Table Assembly
CSTA Series
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Unholtz-Dickie introduced the Combined Slip Table Assembly (CSTA) in the late 1960''s to meet the demand for positive mechanical alignment between the shaker and its companion horizontal slip table. The challenge was to achieve this positive, permanent alignment feature without requiring an expensive seismic mass in the vibration lab floor. The original CSTA design has been continuously improved over the years and has now become the industry standard for permanently aligned, integral reaction mass slip tables.
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Product
Random Vibration Control
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Random control is one of the two basic and most common excitation modes for Environmental Shaker testing. Random performs real-time closed-loop control of PSD profiles. The m+p VibControl vibration control system allows the user to designate all input channels as control, watchdog and/or measurement channels.
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Fiber Shaker
MPX-SR3
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Arden’s MPX Modal Explorer makes measurement of Encircled Flux easy, and accurate, and it complies with international standards. But if you are measuring laser-based transmission light sources for multimode systems you may need to use a test jumper assembly and fiber shaker in order to avoid “speckle”. Industry standards (for example IEEE 802.3aq and FOTP– 203) call for the use of a mechanical fiber shaker.
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High Temperature ICP® Accelerometers
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PCB® offers specially designed and tested ICP® accelerometers for conducting vibration and shock measurements under demanding environmental conditions of up to 356 °F (180 °C). These sensors combine proven quartz and ceramic shear sensing technology with specialized, built-in microelectronic signal conditioning circuitry to achieve dependable operation in extreme temperatures and through repetitive temperature cycling. Laser-welded, hermetically sealed, lightweight titanium or stainless steel housings offer further protection from the environment. Prior to shipment, each sensor undergoes a battery of tests to ensure survivability for its intended use. Such tests include temperature soak at elevated temperatures, temperature cycling, and exposure to highly accelerated screening procedures with hydraulically actuated shakers.
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Product
Measurement Power Amplifier
Qam
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The amplifier is DSP controlled, with a very straightforward operation. Included is a white/pink noise signal generator. The internal signal module provides low crest noise signals to be able to reach high power levels from sound sources or electromagnetic shaker. External input ofsignal is equally possible, with spectral linearisation or without. This can be used for music, RASTI or any other signal
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Product
Multiple Shaker Control
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EDM Multi-Shaker Control (MSC) is a software option included in the EDM testing package along with VCS. Multiple Shaker Control provides one centralized interface to interact with multiple controllers running separate tests at the same time. Multi-shaker controllers are not time synchronized unlike in MIMO VCS, in which all drives are time synchronized.
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Product
Sine Reduction Test
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Sine Reduction Test - Sine Processing With COLA SignalIntegrate and synchronize the data acquisition system seamlessly with your vibration shaker COLA signal and perform a powerful evaluation of structural properties on unlimited channels in real-time. The Dewesoft sine processing solution is easy to set up and will get you measuring right away.
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Electrodynamic Shakers
S-Series
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The S-Series Vibration Test Systems cover a wide range of force output [300 to 6,000 lbf (1.3 - 26.7 kN)] in support of small to moderately large payloads. The S-Series shakers are supplied with SC Series power amplifiers, featuring ultra-rugged Silicon Carbide MOSFET output transistors.
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Product
Shaker
DRK8091
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Shandong Drick Instruments Co., Ltd.
Widely used in particle analysis in pharmaceutical, food, cosmetics, food and other industries, the use of advanced integrated circuit control, the operation is extremely simple.
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Product
Head Expanders
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Unholtz-Dickie offers a wide range of head expanders and head plates to maximize the versatility of any electrodynamic shaker. The head expanders are manufactured from light-weight magnesium alloys, providing high strength-to-weight ratio.
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Product
Electrodynamic Shaker Systems
High Frequency Vibration Testing
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Typical electrodynamic shakers have a usable frequency range up to 2,000-3,000 Hz. For higher frequency applications, UD engineers have developed two different shaker systems optimized for sine & random vibration tests up to 5,000+ Hz. and extreme SRS shock events out to 10,000 Hz.!
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Single-Axis Shaker Vibration Testing
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Modular Vibration Control Systems - Scales up to 512 Channels
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Electrodynamic Shakers
R-Series
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The R-Series vibration test systems are designed to provide reliable performance for medium and high force applications. The R-Series Shaker Armature incorporates a multi-ribbed design, which provides maximum stiffness and minimum weight, resulting in a high acceleration to specimen weight ratio and impressive acceleration and frequency performance.
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Product
Modal tests
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Modal Testing and Modal Analysis - SIMO, MIMO, and ODSEffective and affordable modal testing and analysis solution for SIMO, MIMO, and ODS testing methods. The modal test is an indispensable tool to determine natural frequencies and mode shapes of any structure. With our solution, you are able to excite the structure with an impact hammer or modal vibration shakers and easily measure the responses. Import or draw your geometry for rich visualization and animation of your structures.
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Product
Environmental Vibration Testing
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Whether for independent monitoring or just adding additional channels to an existing vibration controller, the m+p Analyzer real time analyzer provides an ideal solution for measuring vibration and other responses during a shaker test or with shock machines. All test modes allow in-parallel throughput to disk recording so that the raw sample data is available for post-test analysis.
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Product
Special Purpose Instruments
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The Mechanical Impedance Sensor simultaneously measures an applied, driving-point force and response acceleration of a test structure for determining parameters such as mechanical mobility and mechanical impedance. The unit consists of a precision, shear mode accelerometer and a quartz force sensor in a common housing. Installation is primarily facilitated at the structural excitation points, in series with a stinger and vibration shaker.
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Long Stroke Thrusters
Seismic Test Systems
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Unholtz-Dickie offers the world’s first all air-cooled, electrodynamic long-stroke testers for telecommunications, earthquake simulation, and transportation applications. Up to 2,300 lbs (1,040 kg) of payload can be supported on a 48x48 inch (1.2 x 1.2 m) footprint on either the slip plate of the horizontal LS12H thruster or the bearing-guided head expander of the vertical LS12V unit. Both are driven by the highly reliable SAI120 SiC amplifier with an integrated switching cabinet for either vertical or horizontal testing. And because it’s an electrodynamic shaker, relatively high frequencies of up to 1,000 Hz can be achieved.
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Product
Multiple-Input Multiple-Output (MIMO) FRF Testing
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EDM Modal MIMO FRF Testing includes a dedicated test setup and operation process flow using multiple simultaneous shakers to acquire FRF signals. Using a large channel count data acquisition system (i.e., Spider- 80X or Spider-80Xi), this shaker excitation method provides much higher efficiency and accuracy for the FRF measurements while minimizing local stresses on the test article.
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Portable Calibration Shaker Table
AT-2030
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The AT-2030 portable calibration shaker table is designed for simple accelerometer and vibration transducer calibration without the need for advanced features. AT-2030 shaker table and vibration calibrator is a variable frequency, variable amplitude, battery operated portable shaker capable of calibrating accelerometers, transducers, and proximity probes. Applications are producing a known vibration signal in g’s, mils, or ips for sensor, wiring, instrumentation, and system checkout in vibration condition monitoring applications.
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Electrodynamic Shaker Systems
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Electrodynamic shaker systems and amplifiers from MB Dynamics help to support a wide range of general-purpose vibration test requirements. The electrodynamic shaker systems are offered in a variety of force ranges, from 100N (25 lbf) to 22kN (5,000 lbf). The innovative design of MB Dynamics PM-Series electrodynamic shakers incorporates permanent magnet technology and the voice coil principle to create vibration. These heavy-duty electrodynamic shakers feature a robust design for maximum reliability, with end-users reporting a useful service life of 10, 25 or even 40 years! The shakers come in five unique sizes, with peak sine force ratings of 100 N, 200 N, 500 N, 1000 N and 2000 N; or, 25 lbf, 50 lbf, 100 lbf, 250 lbf and 500 lbf. The MB Dynamics C40HP electrodynamic shaker outputs 22 kN or 5,000 lbf peak. The C40HP is a part of the legacy C-Series of shakers, which have served as the foundation for today’s modern electrodynamic vibration test equipment industry.
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Open Air Shakers
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Providing Consistent, Repeatable Reciprocating Shaking Action for a Variety of Applications
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Modal Testing
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We pioneered the use of random excitation for modal testing and extended the method to include multishaker random testing and polyreference data processing. We have unsurpassed experience in modal testing of aerospace and industrial systems, including large scale testing for aerospace systems with over 400 accelerometers and eight shakers.
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Electromagnetic Vibration Testing Systems
EV series
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Labtone Test Equipment Co., LTD
EV series of electromagnetic vibration testing systems cover a wide range of forces ideal for many different applications. The electrodynamic shaker systems are well-suited for vibration testing products and structures of any size – from small components and electronic hardware to very large devices and structures.
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Shaker Systems
C-Series
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The MB Dynamics C10E, C40HP, C90HP and C150HP Electrodynamic Shakers comprise current deliverables in a long history of reliable and rugged shakers earning a well-deserved reputation for high performance, longevity, and dependability. They build upon MB’s family of CSeries products (C10, C25, C40, C50, C60, C90, C125, C126, C150, C200, C210, C220) with a heritage spanning 50 years.
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Product
Dual Purpose Shakers
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The Modal Shop’s dual purpose shakers are ideal for both vibration testing of small components and modal analysis. Small and lightweight, yet powerful electrodynamic shakers, the dual purpose line provides up to 110 lbf (489 N) pk sine force across a wide frequency range.
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Product
Electrodynamic shakers
EV232
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Labtone Test Equipment Co., LTD
Labtone EV series of electromagnetic vibration testing system simulate the vibration environment under the laboratory condition, and test the impact strength as well as reliability of various vibration test applications. In the laboratory, with the aid of vibration testing system, simulations of reproduction of sinusoidal, random, resonant search and dwell, classical shock and road models, etc. can be achieved. It is essential for product quality assurance, new product research and development.
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MIMO Vibration Control Overview
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MIMO Testing has gained a huge momentum in the past decade with the development of multiple shaker table systems, the availability of Multiple-Input Multiple-Output (MIMO) controllers, and the readiness of the standards (e.g., Mil STD 810G method 527 and IEST DTE 022 working group recommendation). The Multiple-Input Multiple-Output (MIMO) Control System includes the following:
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Replacement Power Amplifiers
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Unholtz-Dickie offers a full line of high-performance Class D switching power amplifiers. These amplifiers, used in UD’s new shaker systems, are offered as replacements for older, water-cooled vacuum tube amplifiers or bipolar transistor amplifiers.
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Shaker Controllers
ZET 017-U Series
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Shaker Controllers of ZET 017-U series are represented by a software and hardware complex solutions based on FFT spectrum analyzer ZET 017 with task-specific software ZETLAB VIBRO for the control of shock and vibration impact produced by electrodynamic shaker systems. The modular principle of the system structure allows to increase the number of measuring channels from 4 up to 24.
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Product
Vibration Test Equipment & Measuring Products
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At MB Dynamics, we take great pride in our ability to serve clients in a wide range of industries with world-class vibration testing and vibration measurement and analysis products. MB’s family of products has grown over the years, beginning with electrodynamic shakers and developing into an extensive inventory which includes a variety of application-specific solutions.
